Emergency Medicine · Pulmonology · ICU and Critical Care
Quick COVID-19 Severity Index (qCSI) calculator
Enter the published formula inputs below to calculate and interpret this score.
Clinical inputs
Result
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Clinical inputs
- Respiratory rate
- Lowest SpO₂ (first 4 hours)
- Oxygen flow rate
Primary source
Haimovich AD et al. Development and Validation of the Quick COVID-19 Severity Index: A Prognostic Tool for Early Clinical Decompensation. Ann Emerg Med. DOI: 10.1016/j.annemergmed.2020.07.022. PMID: 33012378. Scope: qCSI Table 2 — RR (≤22/23–28/>28), lowest SpO₂ (>92/89–92/≤88), O₂ flow (≤2/3–4/5–6 L/min); total 0–12 for 24-hour respiratory decompensation risk. (2020)
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